eval javascipt

To evaluate JavaScript code in Delphi, you can use the TWebBrowser component. Here's an example of how you can do it:

procedure EvaluateJavaScript(const JavaScriptCode: string);
var
  WebBrowser: TWebBrowser;
  HTMLDocument: IHTMLDocument2;
  HTMLWindow: IHTMLWindow2;
begin
  WebBrowser := TWebBrowser.Create(nil);
  try
    WebBrowser.Navigate('about:blank');
    while WebBrowser.ReadyState <> READYSTATE_COMPLETE do
      Application.ProcessMessages;

    HTMLDocument := WebBrowser.Document as IHTMLDocument2;
    HTMLWindow := HTMLDocument.parentWindow;

    HTMLWindow.execScript(JavaScriptCode, 'JavaScript');
  finally
    WebBrowser.Free;
  end;
end;

You can call the EvaluateJavaScript procedure and pass the JavaScript code you want to evaluate as a parameter. The code will be executed in the context of the web browser control.

Please note that the TWebBrowser component uses the Internet Explorer rendering engine, so make sure you have Internet Explorer installed on your system.

I hope this helps! Let me know if you have any further questions.